ROOT   Reference Guide
TParallelCoord Class Reference

Parallel Coordinates class.

The multidimensional system of Parallel coordinates is a common way of studying high-dimensional geometry and visualizing multivariate problems. It has first been proposed by A. Inselberg in 1981.

To show a set of points in an n-dimensional space, a backdrop is drawn consisting of n parallel lines. A point in n-dimensional space is represented as a polyline with vertices on the parallel axes; the position of the vertex on the i-th axis corresponds to the i-th coordinate of the point.

This tool comes with a rather large gui in the editor. It is necessary to use this editor in order to explore a data set, as explained below.

Reduce cluttering:

The main issue for parallel coordinates is the very high cluttering of the output when dealing with large data set. Two techniques have been implemented to bypass that so far:

• Draw doted lines instead of plain lines with an adjustable dots spacing. A slider to adjust the dots spacing is available in the editor.
• Sort the entries to display with a "weight cut". On each axis is drawn a histogram describing the distribution of the data on the corresponding variable. The "weight" of an entry is the sum of the bin content of each bin the entry is going through. An entry going through the histograms peaks will have a big weight wether an entry going randomly through the histograms will have a rather small weight. Setting a cut on this weight allows to draw only the most representative entries. A slider set the cut is also available in the gui.

Selections:

Selections of specific entries can be defined over the data se using parallel coordinates. With that representation, a selection is an ensemble of ranges defined on the axes. Ranges defined on the same axis are conjugated with OR (an entry must be in one or the other ranges to be selected). Ranges on different axes are are conjugated with AND (an entry must be in all the ranges to be selected). Several selections can be defined with different colors. It is possible to generate an entry list from a given selection and apply it to the tree using the editor ("Apply to tree" button).

Axes:

Options can be defined each axis separately using the right mouse click. These options can be applied to every axes using the editor.

• Axis width: If set to 0, the axis is simply a line. If higher, a color histogram is drawn on the axis.
• Axis histogram height: If not 0, a usual bar histogram is drawn on the plot.

The order in which the variables are drawn is essential to see the clusters. The axes can be dragged to change their position. A zoom is also available. The logarithm scale is also available by right clicking on the axis.

Candle chart:

TParallelCoord can also be used to display a candle chart. In that mode, every variable is drawn in the same scale. The candle chart can be combined with the parallel coordinates mode, drawing the candle sticks over the axes.

{
TCanvas *c1 = new TCanvas("c1");
TFile *f = TFile::Open("cernstaff.root");
TTree *T = (TTree*)f->Get("T");
}
#define f(i)
Definition: RSha256.hxx:104
@ kViolet
Definition: Rtypes.h:67
virtual void SetLineColor(Color_t lcolor)
Set the line color.
Definition: TAttLine.h:40
The Canvas class.
Definition: TCanvas.h:23
A ROOT file is a suite of consecutive data records (TKey instances) with a well defined format.
Definition: TFile.h:54
static TFile * Open(const char *name, Option_t *option="", const char *ftitle="", Int_t compress=ROOT::RCompressionSetting::EDefaults::kUseCompiledDefault, Int_t netopt=0)
Create / open a file.
Definition: TFile.cxx:3997
virtual TObject * FindObject(const char *name) const
Find an object in this list using its name.
Definition: TList.cxx:578
A TParallelCoordRange is a range used for parallel coordinates plots.
TParallelCoord axes.
Add a range to the current selection on the axis.
Parallel Coordinates class.
TParallelCoordSelect * GetCurrentSelection()
Return the selection currently being edited.
TList * GetVarList()
A TTree represents a columnar dataset.
Definition: TTree.h:79
return c1
Definition: legend1.C:41
double T(double x)
Definition: ChebyshevPol.h:34

Some references:

• Alfred Inselberg's Homepage http://www.math.tau.ac.il/~aiisreal, with Visual Tutorial, History, Selected Publications and Applications.
• Almir Olivette Artero, Maria Cristina Ferreira de Oliveira, Haim Levkowitz, "Uncovering Clusters in Crowded Parallel Coordinates Visualizations," infovis, pp. 81-88, IEEE Symposium on Information Visualization (INFOVIS'04), 2004.

Definition at line 28 of file TParallelCoord.h.

Public Types

enum  EStatusBits {
kVertDisplay = BIT(14) , kCurveDisplay = BIT(15) , kPaintEntries = BIT(16) , kLiveUpdate = BIT(17) ,
kGlobalScale = BIT(19) , kCandleChart = BIT(20) , kGlobalLogScale = BIT(21)
}

Public Types inherited from TObject
enum  {
kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,
}

enum  { kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) }

enum  EDeprecatedStatusBits { kObjInCanvas = BIT(3) }

enum  EStatusBits {
kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) ,
kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13)
}

Public Member Functions

TParallelCoord ()
Default constructor. More...

TParallelCoord (Long64_t nentries)
Constructor without a reference to a tree, the datas must be added afterwards with TParallelCoord::AddVariable(Double_t*,const char*). More...

TParallelCoord (TTree *tree, Long64_t nentries)
Normal constructor, the datas must be added afterwards with TParallelCoord::AddVariable(Double_t*,const char*). More...

virtual ~TParallelCoord ()
Destructor. More...

Add a variable from an expression. More...

void AddVariable (Double_t *val, const char *title="")

void ApplySelectionToTree ()
Apply the current selection to the tree. More...

void CleanUpSelections (TParallelCoordRange *range)
Clean up the selections from the ranges which could have been deleted when a variable has been deleted. More...

void DeleteSelection (TParallelCoordSelect *sel)
Delete a selection. More...

virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
Compute the distance from the TParallelCoord. More...

virtual void Draw (Option_t *options="")
Draw the parallel coordinates graph. More...

virtual void ExecuteEvent (Int_t entry, Int_t px, Int_t py)
Execute the corresponding entry. More...

Bool_t GetCandleChart ()

Long64_t GetCurrentFirst ()

Long64_t GetCurrentN ()

TParallelCoordSelectGetCurrentSelection ()
Return the selection currently being edited. More...

Bool_t GetCurveDisplay () const

Int_t GetDotsSpacing () const

TEntryListGetEntryList (Bool_t sel=kTRUE)
Get the whole entry list or one for a selection. More...

Bool_t GetGlobalLogScale ()

Double_t GetGlobalMax ()
return the global maximum. More...

Double_t GetGlobalMin ()
return the global minimum. More...

Bool_t GetGlobalScale ()

Color_t GetLineColor ()

Width_t GetLineWidth ()

Int_t GetNbins ()
get the binning of the histograms. More...

Long64_t GetNentries ()

UInt_t GetNvar ()

TParallelCoordSelectGetSelection (const char *title)
Get a selection from its title. More...

TListGetSelectList ()

TTreeGetTree ()
return the tree if fTree is defined. More...

Double_tGetVariable (const char *var)
Get the variables values from its title. More...

Double_tGetVariable (Int_t i)
Get the variables values from its index. More...

TListGetVarList ()

Bool_t GetVertDisplay () const

Int_t GetWeightCut () const

virtual void Paint (Option_t *options="")
Paint the parallel coordinates graph. More...

Bool_t RemoveVariable (const char *var)
Delete the variable "vartitle" from the graph. More...

void RemoveVariable (TParallelCoordVar *var)
Delete a variable from the graph. More...

void ResetTree ()
Reset the tree entry list to the initial one.. More...

void SaveEntryLists (const char *filename="", Bool_t overwrite=kFALSE)
Save the entry lists in a root file "filename.root". More...

void SavePrimitive (std::ostream &out, Option_t *options)
Save the TParallelCoord in a macro. More...

void SaveTree (const char *filename="", Bool_t overwrite=kFALSE)
Save the tree in a file if fTreeFileName == "". More...

void SetAxisHistogramBinning (Int_t n=100)
Set the same histogram axis binning for all axis. More...

void SetAxisHistogramHeight (Double_t h=0.5)
Set the same histogram axis height for all axis. More...

void SetAxisHistogramLineWidth (Int_t lw=2)
Set the same histogram axis line width for all axis. More...

void SetCandleChart (Bool_t can)
Set a candle chart display. More...

void SetCurrentEntries (TEntryList *entries)

void SetCurrentFirst (Long64_t)
Set the first entry to be displayed. More...

void SetCurrentN (Long64_t)
Set the number of entry to be displayed. More...

TParallelCoordSelectSetCurrentSelection (const char *title)
Set the selection being edited. More...

void SetCurrentSelection (TParallelCoordSelect *sel)
Set the selection being edited. More...

virtual void SetCurveDisplay (Bool_t curve=1)

void SetDotsSpacing (Int_t s=0)
Set dots spacing. More...

void SetGlobalLogScale (Bool_t)
All axes in log scale. More...

void SetGlobalMax (Double_t max)
Force all variables to adopt the same max. More...

void SetGlobalMin (Double_t min)
Force all variables to adopt the same min. More...

void SetGlobalScale (Bool_t gl)
Constraint all axes to the same scale. More...

void SetInitEntries (TEntryList *entries)

void SetLineColor (Color_t col)

void SetLineWidth (Width_t wid)

void SetLiveRangesUpdate (Bool_t)
If true, the pad is updated while the motion of a dragged range. More...

void SetNentries (Long64_t n)

void SetTree (TTree *tree)

void SetVertDisplay (Bool_t vert=kTRUE)
Set the vertical or horizontal display. More...

void SetWeightCut (Int_t w=0)

void UnzoomAll ()
Unzoom all variables. More...

Public Member Functions inherited from TNamed
TNamed ()

TNamed (const char *name, const char *title)

TNamed (const TNamed &named)
TNamed copy ctor. More...

TNamed (const TString &name, const TString &title)

virtual ~TNamed ()
TNamed destructor. More...

virtual void Clear (Option_t *option="")
Set name and title to empty strings (""). More...

virtual TObjectClone (const char *newname="") const
Make a clone of an object using the Streamer facility. More...

virtual Int_t Compare (const TObject *obj) const
Compare two TNamed objects. More...

virtual void Copy (TObject &named) const
Copy this to obj. More...

virtual void FillBuffer (char *&buffer)
Encode TNamed into output buffer. More...

virtual const char * GetName () const
Returns name of object. More...

virtual const char * GetTitle () const
Returns title of object. More...

virtual ULong_t Hash () const
Return hash value for this object. More...

virtual Bool_t IsSortable () const

virtual void ls (Option_t *option="") const
List TNamed name and title. More...

TNamedoperator= (const TNamed &rhs)
TNamed assignment operator. More...

virtual void Print (Option_t *option="") const
Print TNamed name and title. More...

virtual void SetName (const char *name)
Set the name of the TNamed. More...

virtual void SetNameTitle (const char *name, const char *title)
Set all the TNamed parameters (name and title). More...

virtual void SetTitle (const char *title="")
Set the title of the TNamed. More...

virtual Int_t Sizeof () const
Return size of the TNamed part of the TObject. More...

Public Member Functions inherited from TObject
TObject ()
TObject constructor. More...

TObject (const TObject &object)
TObject copy ctor. More...

virtual ~TObject ()
TObject destructor. More...

void AbstractMethod (const char *method) const
Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...

Append graphics object to current pad. More...

virtual void Browse (TBrowser *b)
Browse object. May be overridden for another default action. More...

ULong_t CheckedHash ()
Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. More...

virtual const char * ClassName () const
Returns name of class to which the object belongs. More...

virtual void Clear (Option_t *="")

virtual TObjectClone (const char *newname="") const
Make a clone of an object using the Streamer facility. More...

virtual Int_t Compare (const TObject *obj) const
Compare abstract method. More...

virtual void Copy (TObject &object) const
Copy this to obj. More...

virtual void Delete (Option_t *option="")
Delete this object. More...

virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
Computes distance from point (px,py) to the object. More...

virtual void Draw (Option_t *option="")
Default Draw method for all objects. More...

virtual void DrawClass () const
Draw class inheritance tree of the class to which this object belongs. More...

virtual TObjectDrawClone (Option_t *option="") const
Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad). More...

virtual void Dump () const
Dump contents of object on stdout. More...

virtual void Error (const char *method, const char *msgfmt,...) const
Issue error message. More...

virtual void Execute (const char *method, const char *params, Int_t *error=0)
Execute method on this object with the given parameter string, e.g. More...

virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
Execute method on this object with parameters stored in the TObjArray. More...

virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
Execute action corresponding to an event at (px,py). More...

virtual void Fatal (const char *method, const char *msgfmt,...) const
Issue fatal error message. More...

virtual TObjectFindObject (const char *name) const
Must be redefined in derived classes. More...

virtual TObjectFindObject (const TObject *obj) const
Must be redefined in derived classes. More...

virtual Option_tGetDrawOption () const
Get option used by the graphics system to draw this object. More...

virtual const char * GetIconName () const
Returns mime type name of object. More...

virtual const char * GetName () const
Returns name of object. More...

virtual char * GetObjectInfo (Int_t px, Int_t py) const
Returns string containing info about the object at position (px,py). More...

virtual Option_tGetOption () const

virtual const char * GetTitle () const
Returns title of object. More...

virtual UInt_t GetUniqueID () const
Return the unique object id. More...

virtual Bool_t HandleTimer (TTimer *timer)
Execute action in response of a timer timing out. More...

virtual ULong_t Hash () const
Return hash value for this object. More...

Bool_t HasInconsistentHash () const
Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. More...

virtual void Info (const char *method, const char *msgfmt,...) const
Issue info message. More...

virtual Bool_t InheritsFrom (const char *classname) const
Returns kTRUE if object inherits from class "classname". More...

virtual Bool_t InheritsFrom (const TClass *cl) const
Returns kTRUE if object inherits from TClass cl. More...

virtual void Inspect () const
Dump contents of this object in a graphics canvas. More...

void InvertBit (UInt_t f)

virtual Bool_t IsEqual (const TObject *obj) const
Default equal comparison (objects are equal if they have the same address in memory). More...

virtual Bool_t IsFolder () const
Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...

R__ALWAYS_INLINE Bool_t IsOnHeap () const

virtual Bool_t IsSortable () const

R__ALWAYS_INLINE Bool_t IsZombie () const

virtual void ls (Option_t *option="") const
The ls function lists the contents of a class on stdout. More...

void MayNotUse (const char *method) const
Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...

virtual Bool_t Notify ()
This method must be overridden to handle object notification. More...

void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
Use this method to declare a method obsolete. More...

void operator delete (void *ptr)
Operator delete. More...

void operator delete[] (void *ptr)
Operator delete []. More...

voidoperator new (size_t sz)

voidoperator new (size_t sz, void *vp)

voidoperator new[] (size_t sz)

voidoperator new[] (size_t sz, void *vp)

TObjectoperator= (const TObject &rhs)
TObject assignment operator. More...

virtual void Paint (Option_t *option="")
This method must be overridden if a class wants to paint itself. More...

virtual void Pop ()
Pop on object drawn in a pad to the top of the display list. More...

virtual void Print (Option_t *option="") const
This method must be overridden when a class wants to print itself. More...

virtual Int_t Read (const char *name)
Read contents of object with specified name from the current directory. More...

virtual void RecursiveRemove (TObject *obj)
Recursively remove this object from a list. More...

void ResetBit (UInt_t f)

virtual void SaveAs (const char *filename="", Option_t *option="") const
Save this object in the file specified by filename. More...

virtual void SavePrimitive (std::ostream &out, Option_t *option="")
Save a primitive as a C++ statement(s) on output stream "out". More...

void SetBit (UInt_t f)

void SetBit (UInt_t f, Bool_t set)
Set or unset the user status bits as specified in f. More...

virtual void SetDrawOption (Option_t *option="")
Set drawing option for object. More...

virtual void SetUniqueID (UInt_t uid)
Set the unique object id. More...

virtual void SysError (const char *method, const char *msgfmt,...) const
Issue system error message. More...

R__ALWAYS_INLINE Bool_t TestBit (UInt_t f) const

Int_t TestBits (UInt_t f) const

virtual void UseCurrentStyle ()
Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...

virtual void Warning (const char *method, const char *msgfmt,...) const
Issue warning message. More...

virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
Write this object to the current directory. More...

virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
Write this object to the current directory. More...

Static Public Member Functions

static void BuildParallelCoord (TSelectorDraw *selector, Bool_t candle)
Call constructor and add the variables. More...

static void SetEntryList (TParallelCoord *para, TEntryList *enlist)
Set the entry lists of "para". More...

Static Public Member Functions inherited from TObject
static Long_t GetDtorOnly ()
Return destructor only flag. More...

static Bool_t GetObjectStat ()
Get status of object stat flag. More...

static void SetDtorOnly (void *obj)
Set destructor only flag. More...

static void SetObjectStat (Bool_t stat)
Turn on/off tracking of objects in the TObjectTable. More...

Private Member Functions

void Init ()
An axis used when displaying a candle chart. More...

void PaintEntries (TParallelCoordSelect *sel=NULL)
Loop over the entries and paint them. More...

void SetAxesPosition ()
Update the position of the axes. More...

Private Attributes

TGaxisfCandleAxis
Current Selection being edited. More...

TEntryListfCurrentEntries

Long64_t fCurrentFirst

Long64_t fCurrentN

TParallelCoordSelectfCurrentSelection

Int_t fDotsSpacing

TEntryListfInitEntries

Color_t fLineColor

Width_t fLineWidth

Long64_t fNentries

UInt_t fNvar

TListfSelectList

TTreefTree

TString fTreeFileName

TString fTreeName
Pointer to the TTree. More...

TListfVarList

Int_t fWeightCut

Protected Types inherited from TObject
enum  { kOnlyPrepStep = BIT(3) }

Protected Member Functions inherited from TObject
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
Interface to ErrorHandler (protected). More...

void MakeZombie ()

Protected Attributes inherited from TNamed
TString fName

TString fTitle

#include <TParallelCoord.h>

Inheritance diagram for TParallelCoord:
[legend]

◆ EStatusBits

Enumerator
kVertDisplay
kCurveDisplay
kPaintEntries
kLiveUpdate
kGlobalScale
kCandleChart
kGlobalLogScale

Definition at line 30 of file TParallelCoord.h.

◆ TParallelCoord() [1/3]

 TParallelCoord::TParallelCoord ( )

Default constructor.

Definition at line 130 of file TParallelCoord.cxx.

◆ TParallelCoord() [2/3]

 TParallelCoord::TParallelCoord ( Long64_t nentries )

Constructor without a reference to a tree, the datas must be added afterwards with TParallelCoord::AddVariable(Double_t*,const char*).

Definition at line 141 of file TParallelCoord.cxx.

◆ TParallelCoord() [3/3]

 TParallelCoord::TParallelCoord ( TTree * tree, Long64_t nentries )

Definition at line 156 of file TParallelCoord.cxx.

◆ ~TParallelCoord()

 TParallelCoord::~TParallelCoord ( )
virtual

Destructor.

Definition at line 181 of file TParallelCoord.cxx.

Member Function Documentation

 void TParallelCoord::AddSelection ( const char * title )

Definition at line 242 of file TParallelCoord.cxx.

 void TParallelCoord::AddVariable ( const char * varexp )

Add a variable from an expression.

Definition at line 209 of file TParallelCoord.cxx.

 void TParallelCoord::AddVariable ( Double_t * val, const char * title = "" )

Definition at line 199 of file TParallelCoord.cxx.

◆ ApplySelectionToTree()

 void TParallelCoord::ApplySelectionToTree ( )

Apply the current selection to the tree.

Definition at line 252 of file TParallelCoord.cxx.

◆ BuildParallelCoord()

 void TParallelCoord::BuildParallelCoord ( TSelectorDraw * selector, Bool_t candle )
static

Call constructor and add the variables.

Definition at line 288 of file TParallelCoord.cxx.

◆ CleanUpSelections()

 void TParallelCoord::CleanUpSelections ( TParallelCoordRange * range )

Clean up the selections from the ranges which could have been deleted when a variable has been deleted.

Definition at line 313 of file TParallelCoord.cxx.

◆ DeleteSelection()

 void TParallelCoord::DeleteSelection ( TParallelCoordSelect * sel )

Delete a selection.

Definition at line 325 of file TParallelCoord.cxx.

◆ DistancetoPrimitive()

 Int_t TParallelCoord::DistancetoPrimitive ( Int_t px, Int_t py )
virtual

Compute the distance from the TParallelCoord.

Reimplemented from TObject.

Definition at line 336 of file TParallelCoord.cxx.

◆ Draw()

 void TParallelCoord::Draw ( Option_t * options = "" )
virtual

Draw the parallel coordinates graph.

Reimplemented from TObject.

Definition at line 359 of file TParallelCoord.cxx.

◆ ExecuteEvent()

 void TParallelCoord::ExecuteEvent ( Int_t entry, Int_t px, Int_t py )
virtual

Execute the corresponding entry.

Reimplemented from TObject.

Definition at line 429 of file TParallelCoord.cxx.

◆ GetCandleChart()

 Bool_t TParallelCoord::GetCandleChart ( )
inline

Definition at line 81 of file TParallelCoord.h.

◆ GetCurrentFirst()

 Long64_t TParallelCoord::GetCurrentFirst ( )
inline

Definition at line 82 of file TParallelCoord.h.

◆ GetCurrentN()

 Long64_t TParallelCoord::GetCurrentN ( )
inline

Definition at line 83 of file TParallelCoord.h.

◆ GetCurrentSelection()

 TParallelCoordSelect * TParallelCoord::GetCurrentSelection ( )

Return the selection currently being edited.

Definition at line 438 of file TParallelCoord.cxx.

◆ GetCurveDisplay()

 Bool_t TParallelCoord::GetCurveDisplay ( ) const
inline

Definition at line 85 of file TParallelCoord.h.

◆ GetDotsSpacing()

 Int_t TParallelCoord::GetDotsSpacing ( ) const
inline

Definition at line 86 of file TParallelCoord.h.

◆ GetEntryList()

 TEntryList * TParallelCoord::GetEntryList ( Bool_t sel = kTRUE )

Get the whole entry list or one for a selection.

Definition at line 450 of file TParallelCoord.cxx.

◆ GetGlobalLogScale()

 Bool_t TParallelCoord::GetGlobalLogScale ( )
inline

Definition at line 91 of file TParallelCoord.h.

◆ GetGlobalMax()

 Double_t TParallelCoord::GetGlobalMax ( )

return the global maximum.

Definition at line 474 of file TParallelCoord.cxx.

◆ GetGlobalMin()

 Double_t TParallelCoord::GetGlobalMin ( )

return the global minimum.

Definition at line 488 of file TParallelCoord.cxx.

◆ GetGlobalScale()

 Bool_t TParallelCoord::GetGlobalScale ( )
inline

Definition at line 90 of file TParallelCoord.h.

◆ GetLineColor()

 Color_t TParallelCoord::GetLineColor ( )
inline

Definition at line 92 of file TParallelCoord.h.

◆ GetLineWidth()

 Width_t TParallelCoord::GetLineWidth ( )
inline

Definition at line 93 of file TParallelCoord.h.

◆ GetNbins()

 Int_t TParallelCoord::GetNbins ( )

get the binning of the histograms.

Definition at line 502 of file TParallelCoord.cxx.

◆ GetNentries()

 Long64_t TParallelCoord::GetNentries ( )
inline

Definition at line 96 of file TParallelCoord.h.

◆ GetNvar()

 UInt_t TParallelCoord::GetNvar ( )
inline

Definition at line 95 of file TParallelCoord.h.

◆ GetSelection()

 TParallelCoordSelect * TParallelCoord::GetSelection ( const char * title )

Get a selection from its title.

Definition at line 510 of file TParallelCoord.cxx.

◆ GetSelectList()

 TList * TParallelCoord::GetSelectList ( )
inline

Definition at line 97 of file TParallelCoord.h.

◆ GetTree()

 TTree * TParallelCoord::GetTree ( )

return the tree if fTree is defined.

If not, the method try to load the tree from fTreeFileName.

Definition at line 522 of file TParallelCoord.cxx.

◆ GetVariable() [1/2]

 Double_t * TParallelCoord::GetVariable ( const char * var )

Get the variables values from its title.

Definition at line 564 of file TParallelCoord.cxx.

◆ GetVariable() [2/2]

 Double_t * TParallelCoord::GetVariable ( Int_t i )

Get the variables values from its index.

Definition at line 576 of file TParallelCoord.cxx.

◆ GetVarList()

 TList * TParallelCoord::GetVarList ( )
inline

Definition at line 102 of file TParallelCoord.h.

◆ GetVertDisplay()

 Bool_t TParallelCoord::GetVertDisplay ( ) const
inline

Definition at line 103 of file TParallelCoord.h.

◆ GetWeightCut()

 Int_t TParallelCoord::GetWeightCut ( ) const
inline

Definition at line 104 of file TParallelCoord.h.

◆ Init()

 void TParallelCoord::Init ( void )
private

An axis used when displaying a candle chart.

Initialise the data members of TParallelCoord.

Definition at line 585 of file TParallelCoord.cxx.

◆ Paint()

 void TParallelCoord::Paint ( Option_t * options = "" )
virtual

Paint the parallel coordinates graph.

Reimplemented from TObject.

Definition at line 616 of file TParallelCoord.cxx.

◆ PaintEntries()

 void TParallelCoord::PaintEntries ( TParallelCoordSelect * sel = NULL )
private

Loop over the entries and paint them.

Definition at line 645 of file TParallelCoord.cxx.

◆ RemoveVariable() [1/2]

 Bool_t TParallelCoord::RemoveVariable ( const char * var )

Delete the variable "vartitle" from the graph.

Definition at line 739 of file TParallelCoord.cxx.

◆ RemoveVariable() [2/2]

 void TParallelCoord::RemoveVariable ( TParallelCoordVar * var )

Delete a variable from the graph.

Definition at line 729 of file TParallelCoord.cxx.

◆ ResetTree()

 void TParallelCoord::ResetTree ( )

Reset the tree entry list to the initial one..

Definition at line 759 of file TParallelCoord.cxx.

◆ SaveEntryLists()

 void TParallelCoord::SaveEntryLists ( const char * filename = "", Bool_t overwrite = kFALSE )

Save the entry lists in a root file "filename.root".

Definition at line 791 of file TParallelCoord.cxx.

◆ SavePrimitive()

 void TParallelCoord::SavePrimitive ( std::ostream & out, Option_t * options )
virtual

Save the TParallelCoord in a macro.

Reimplemented from TObject.

Definition at line 814 of file TParallelCoord.cxx.

◆ SaveTree()

 void TParallelCoord::SaveTree ( const char * filename = "", Bool_t overwrite = kFALSE )

Save the tree in a file if fTreeFileName == "".

Definition at line 883 of file TParallelCoord.cxx.

◆ SetAxesPosition()

 void TParallelCoord::SetAxesPosition ( )
private

Update the position of the axes.

Definition at line 907 of file TParallelCoord.cxx.

◆ SetAxisHistogramBinning()

 void TParallelCoord::SetAxisHistogramBinning ( Int_t n = 100 )

Set the same histogram axis binning for all axis.

Definition at line 951 of file TParallelCoord.cxx.

◆ SetAxisHistogramHeight()

 void TParallelCoord::SetAxisHistogramHeight ( Double_t h = 0.5 )

Set the same histogram axis height for all axis.

Definition at line 961 of file TParallelCoord.cxx.

◆ SetAxisHistogramLineWidth()

 void TParallelCoord::SetAxisHistogramLineWidth ( Int_t lw = 2 )

Set the same histogram axis line width for all axis.

Definition at line 1017 of file TParallelCoord.cxx.

◆ SetCandleChart()

 void TParallelCoord::SetCandleChart ( Bool_t can )

Set a candle chart display.

Definition at line 1027 of file TParallelCoord.cxx.

◆ SetCurrentEntries()

 void TParallelCoord::SetCurrentEntries ( TEntryList * entries )
inline

Definition at line 115 of file TParallelCoord.h.

◆ SetCurrentFirst()

 void TParallelCoord::SetCurrentFirst ( Long64_t f )

Set the first entry to be displayed.

Definition at line 1057 of file TParallelCoord.cxx.

◆ SetCurrentN()

 void TParallelCoord::SetCurrentN ( Long64_t n )

Set the number of entry to be displayed.

Definition at line 1074 of file TParallelCoord.cxx.

◆ SetCurrentSelection() [1/2]

 TParallelCoordSelect * TParallelCoord::SetCurrentSelection ( const char * title )

Set the selection being edited.

Definition at line 1091 of file TParallelCoord.cxx.

◆ SetCurrentSelection() [2/2]

 void TParallelCoord::SetCurrentSelection ( TParallelCoordSelect * sel )

Set the selection being edited.

Definition at line 1104 of file TParallelCoord.cxx.

◆ SetCurveDisplay()

 virtual void TParallelCoord::SetCurveDisplay ( Bool_t curve = 1 )
inlinevirtual

Definition at line 114 of file TParallelCoord.h.

◆ SetDotsSpacing()

 void TParallelCoord::SetDotsSpacing ( Int_t s = 0 )

Set dots spacing.

Modify the line style 11. If the canvas support transparency dot spacing is ignored.

Definition at line 1114 of file TParallelCoord.cxx.

◆ SetEntryList()

 void TParallelCoord::SetEntryList ( TParallelCoord * para, TEntryList * enlist )
static

Set the entry lists of "para".

Definition at line 1125 of file TParallelCoord.cxx.

◆ SetGlobalLogScale()

 void TParallelCoord::SetGlobalLogScale ( Bool_t lt )

All axes in log scale.

Definition at line 971 of file TParallelCoord.cxx.

◆ SetGlobalMax()

 void TParallelCoord::SetGlobalMax ( Double_t max )

Force all variables to adopt the same max.

Definition at line 1134 of file TParallelCoord.cxx.

◆ SetGlobalMin()

 void TParallelCoord::SetGlobalMin ( Double_t min )

Force all variables to adopt the same min.

Definition at line 1146 of file TParallelCoord.cxx.

◆ SetGlobalScale()

 void TParallelCoord::SetGlobalScale ( Bool_t gl )

Constraint all axes to the same scale.

Definition at line 984 of file TParallelCoord.cxx.

◆ SetInitEntries()

 void TParallelCoord::SetInitEntries ( TEntryList * entries )
inline

Definition at line 126 of file TParallelCoord.h.

◆ SetLineColor()

 void TParallelCoord::SetLineColor ( Color_t col )
inline

Definition at line 127 of file TParallelCoord.h.

◆ SetLineWidth()

 void TParallelCoord::SetLineWidth ( Width_t wid )
inline

Definition at line 128 of file TParallelCoord.h.

◆ SetLiveRangesUpdate()

 void TParallelCoord::SetLiveRangesUpdate ( Bool_t on )

If true, the pad is updated while the motion of a dragged range.

Definition at line 1158 of file TParallelCoord.cxx.

◆ SetNentries()

 void TParallelCoord::SetNentries ( Long64_t n )
inline

Definition at line 130 of file TParallelCoord.h.

◆ SetTree()

 void TParallelCoord::SetTree ( TTree * tree )
inline

Definition at line 131 of file TParallelCoord.h.

◆ SetVertDisplay()

 void TParallelCoord::SetVertDisplay ( Bool_t vert = kTRUE )

Set the vertical or horizontal display.

Definition at line 1169 of file TParallelCoord.cxx.

◆ SetWeightCut()

 void TParallelCoord::SetWeightCut ( Int_t w = 0 )
inline

Definition at line 133 of file TParallelCoord.h.

◆ UnzoomAll()

 void TParallelCoord::UnzoomAll ( )

Unzoom all variables.

Definition at line 1199 of file TParallelCoord.cxx.

◆ fCandleAxis

 TGaxis* TParallelCoord::fCandleAxis
private

Current Selection being edited.

Definition at line 57 of file TParallelCoord.h.

◆ fCurrentEntries

 TEntryList* TParallelCoord::fCurrentEntries
private

Definition at line 49 of file TParallelCoord.h.

◆ fCurrentFirst

 Long64_t TParallelCoord::fCurrentFirst
private

Definition at line 42 of file TParallelCoord.h.

◆ fCurrentN

 Long64_t TParallelCoord::fCurrentN
private

Definition at line 43 of file TParallelCoord.h.

◆ fCurrentSelection

 TParallelCoordSelect* TParallelCoord::fCurrentSelection
private

Definition at line 56 of file TParallelCoord.h.

◆ fDotsSpacing

 Int_t TParallelCoord::fDotsSpacing
private

Definition at line 45 of file TParallelCoord.h.

◆ fInitEntries

 TEntryList* TParallelCoord::fInitEntries
private

Definition at line 50 of file TParallelCoord.h.

◆ fLineColor

 Color_t TParallelCoord::fLineColor
private

Definition at line 46 of file TParallelCoord.h.

◆ fLineWidth

 Width_t TParallelCoord::fLineWidth
private

Definition at line 47 of file TParallelCoord.h.

◆ fNentries

 Long64_t TParallelCoord::fNentries
private

Definition at line 44 of file TParallelCoord.h.

◆ fNvar

 UInt_t TParallelCoord::fNvar
private

Definition at line 41 of file TParallelCoord.h.

◆ fSelectList

 TList* TParallelCoord::fSelectList
private

Definition at line 55 of file TParallelCoord.h.

◆ fTree

 TTree* TParallelCoord::fTree
private

Definition at line 51 of file TParallelCoord.h.

◆ fTreeFileName

 TString TParallelCoord::fTreeFileName
private

Definition at line 53 of file TParallelCoord.h.

◆ fTreeName

 TString TParallelCoord::fTreeName
private

Pointer to the TTree.

Definition at line 52 of file TParallelCoord.h.

◆ fVarList

 TList* TParallelCoord::fVarList
private

Definition at line 54 of file TParallelCoord.h.

◆ fWeightCut

 Int_t TParallelCoord::fWeightCut
private

Definition at line 48 of file TParallelCoord.h.

Libraries for TParallelCoord:
[legend]

The documentation for this class was generated from the following files: